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  • Antiparasitic agents  (1)
  • Pharmacology  (1)
  • Turtle culture  (1)
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  • 1
    Publikationsdatum: 2021-05-19
    Beschreibung: Daily topical application of the aqueous ethanolic extract of the marine sea grass, Thalassia testudinum, on mice skin exposed to UVB radiation resulted in a dose dependent recovery of the skin macroscopic alterations over a 6-day period. Maximal effect (90%) occurred at a dose of 240 μg/cm2, with no additional effects at higher doses. Bioassay-guided fractionation of the plant extract resulted in the isolation of thalassiolin B (1). Topical application of 1 (240 μg/cm2) markedly reduces skin UVB-induced damage. In addition, thalassiolin B scavenged 2,2-diphenyl-2-picrylhydrazyl radical with an EC50=100 μg/ml. These results suggest that thalassiolin B is responsible for the skin regenerating effects of the crude extract of T. testudinum
    Beschreibung: Published
    Beschreibung: Flavonoids, Thalassiolin B, DPPH scavenged, antioxidant activity, Skin regenerating activity, Thalassia testudinum
    Schlagwort(e): Chemistry ; Pharmacology ; Chemistry ; Pharmacology
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2021-05-19
    Beschreibung: Marine sponges (Porifera) have drawn the attention from a broad number of researchers all over the world. These animals and their simbionts are specialized in chemical warfare, producing biologically active chemical substances as an effective defense against predators. They have been considered a goldmine to chemists, from which have been discovered more than 6000 novel structures; many of them, with enormous biomedical applications, mainly against cancer, but also against bacteria, viruses and other diseases. Some of the sponge-derived drugs are available in the market, such as: Ara-A (antiviral) and Ara-C (anticancer), but there are diverse bioactive compounds under clinical trials. In Cuba, the researches related to the isolation of compounds from marine sponges are scarce and the initial studies were about pharmacological evaluations of extracts and fractions. In recent studies, three sponges were investigated (Agelas cerebrum, Niphates digitalis and Pandaros acanthifolium), from which were isolated and identified 45 metabolites, two of them were isolated for the first time as natural products, including the discovery of 30 novel metabolites, dividing in two new families of steroidal saponins with uncommon chemical characteristics and potential against several parasitic protozoa and tumor human cell lines.
    Beschreibung: Published
    Beschreibung: marine sponges, novel compounds, bioactive metabolites, antiparasitic, antitumoral
    Schlagwort(e): Sponges ; Organic compounds ; Antiparasitic agents
    Repository-Name: AquaDocs
    Materialart: Journal Contribution , Refereed , Article
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Publikationsdatum: 2021-05-19
    Beschreibung: The volatile constituents from the sea grass Thalassia testudinum Banks ex König was analyzed by GC and GC/MS. One hundred and forty-three constituents were identified which constitute more than 95% of the composition. All of them reported for the first time in this species. The most prominent volatile compound was ethyl (Z)-1-propenyl disulfide (31% of the total composition).
    Beschreibung: Published
    Beschreibung: Turtle grass, Thalassia testudinum, Hydrocharitaceae, ethyl (Z)-1-propenyl
    Schlagwort(e): Turtle culture ; Volatile compounds ; Volatile compounds ; Turtle culture
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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